Part of the reason I purchased a Wii was for the stand up get out of your seat and pray you don’t put your wii-mote through the big screen tv movement. I might be a bit late on this but check out some of the cool "exercise gaming" you can do.
Wii Fit 
Or check out the Wii Weight Loss Program.
Makes it so I can cancel my GoldsGym Pass. Woot! 